This module is a capacitive touch-type touch switch module based on a touch detection IC (TTP223B). Normally, the module outputs a low level and the mode is a low-power mode. When touching the corresponding position with your finger, the module will output high level and the mode will switch to fast mode; When there is no touch for 12 seconds, the mode switches to low power mode again. The module can be installed on the surface of non-metallic materials such as plastics and glass. In addition, thin paper (non-metal) is covered on the surface of the module. If the touched position is correct, it can be hidden in the wall, desktop, etc. button. This module allows you to avoid the troubles of conventional press buttons.
Features: Inching type: the initial state is low, the touch is high, not touched low (similar to the touch button function) Low power consumption Power supply could be 2~5.5V DC Both sides could be used as a touch surface, which can replace the traditional touch keys 4 M2 screw locating holes for easy installation
Control interface: total 3 pins (GND, VCC, SIG) GND is ground, VCC is the power supply, SIG is the digital signal output pin; Power indicator: green LED, light up when powered on; Touch area: The internal area of the icon resembling a fingerprint. Touch with a finger to trigger it. Locating holes: 4 M2 screw locating holes, with an aperture of 2.2mm, make the module easy to install and position, and realize the combination between modules.